Foldable maintenance vehicle for walking along bridge abutment

The invention relates to bridge maintenance equipment, in particular to a foldable maintenance vehicle for walking along a bridge abutment. The foldable maintenance vehicle for walking along the bridge abutment comprises a foldable vehicle body, a driving wheel, a driven wheel, two supporting wheels, a walking motor and a speed reducer, the driving wheel and the driven wheel are arranged at the two ends of the upper portion of the foldable vehicle body respectively, and the two supporting wheels are arranged at the two ends of the lower portion of the foldable vehicle body respectively; the driving wheel and the driven wheel are placed in a bearing rail of the bridge abutment, and the supporting wheels are attached to a supporting rail of the bridge abutment. The walking motor and the speed reducer are installed on the foldable vehicle body, and the walking motor drives the driving wheel to achieve walking through the speed reducer. The foldable maintenance vehicle can walk along the bridge abutment and safel